I just stepped outside, into the near complete darkness under a starry sky at 6 pm. Immediately, a chorus of hollow whoo's sounded from above. More tundra swans. From the location of their voices, they flew directly overhead, in a northwest/southeast path.
The moon was not up yet. These birds must know how to navigate by the stars. They'll probably be flying all night. God speed, hope to hear your magnificent voices in the spring.
Last night, The Hermit drove the kids to youth group at church, and saw the same bird twice, on the way there and back, a hawklike bird all white underneath, flying up from the ditch and disappearing into the woods. One time, it's in your mind. Twice, it's there but it's a spirit bird. I saw it the third time. That makes it a late migrating northern harrier.